The correct answers are: A. include; decision.
The maps give us the basic representation of the planet, or parts of it, but there is simply no way that they can include everything in them. That makes the map makers make a decision, what is more important and what is not, in order for the maps to satisfy the interest of the people.
Because the maps are simplified, and that process in going through humans, it is inevitable that there are biased decisions, and it is normal because everyone looks at things in their own unique way, and through their own interests.